Honestly, if you haven't seen the Netflix hit KPop Demon Hunters yet, where have you even been? It's basically the only thing my feed has been screaming about since it dropped. We all expected the girl group, Huntrix (or HUNTR/X if you're fancy), to be the stars. And they are! Rumi, Mira, and Zoey are iconic. But then the Saja Boys showed up and basically bias-wrecked the entire planet.
They're demons. Literally.
But they have names that sound like a fever dream of a 2010s fanfiction, and somehow, it totally works. If you're trying to keep track of the kpop demon hunters boys names because you're already deep in the fandom or just curious why your Twitter is full of "Abs Saja" memes, I've got you. These aren't just random names; they’re a weirdly perfect mix of K-pop tropes and dark Korean mythology.
Who Are The Saja Boys?
The Saja Boys are the "rival" group in the movie, sent by the demon king Gwi-Ma to steal fans' souls. Their name comes from Jeoseung Saja, which are the Grim Reapers in Korean folklore. Basically, they're the guys who escort you to the afterlife. Not exactly the vibe you want for a fanmeet, right?
The group consists of five members, and their names are... well, they’re specific.
1. Jinu (The Leader)
Jinu is the heart of the group and the only one with a "normal" human name. There's a reason for that. He was actually a human 400 years ago who made a deal with Gwi-Ma to save his family from poverty. He’s the leader and the main vocalist.
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- Voice Actor: Ahn Hyo-seop (who you definitely know from Business Proposal).
- Singing Voice: Andrew Choi.
- The Vibe: Pure "prince" energy. Think Cha Eun-woo meets a tragic K-drama lead.
2. Mystery (The Dancer)
Mystery is exactly what it says on the tin. He spends almost the entire movie with long, grey hair covering his face. He's the one who can sense spirits and moves like he doesn't have bones.
- Voice Actor: Alan Lee.
- Singing Voice: Kevin Woo (former U-KISS member!).
- The Vibe: Emo hair era Daesung from BIGBANG, but make it supernatural.
3. Romance (The Visual)
You can't have a K-pop group without a "Romance," right? He’s the one with the long pink hair who is incredibly arrogant but somehow charming. He's the lead vocalist and basically exists to make people fall in love so he can snatch their energy.
- Voice Actor: Joel Kim Booster.
- Singing Voice: samUIL Lee.
- The Vibe: Total Yeonjun (TXT) pink hair energy mixed with a bit of Stray Kids’ Felix.
4. Baby (The Maknae)
The youngest. In most groups, the maknae is the cute one. Baby Saja is cute, sure, but he’s also a savage rapper with a voice that is way deeper than you’d expect. He doesn't actually have speaking lines in the movie—just bars.
- Rapping Voice: Danny Chung (the songwriter from THEBLACKLABEL).
- The Vibe: BTS Jimin’s face with Stray Kids' Felix’s voice. It’s a trip.
5. Abby / Abs (The Muscle)
Yes, his name is actually Abby, but everyone calls him Abs. Why? Because he has them. And he’s the "Producer" of the group who also happens to be built like a tank.
- Voice Actor: SungWon Cho (ProZD).
- Singing Voice: Neckwav.
- The Vibe: ATEEZ San or Monsta X Wonho. High-intensity performance, zero chill.
Why These Names Actually Matter
It’s easy to laugh at names like "Baby" and "Romance," but in the context of KPop Demon Hunters, they represent the shallow labels idols are often forced into. The movie gets surprisingly deep about it. When the Saja Boys transform into their true demon forms, their names change to reflect Korean mythology:
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- Jinu becomes Cheonsa (Heaven’s Messenger).
- Mystery becomes Yeomra’s Shadow (Yeomra is the King of the Underworld).
- Romance becomes Shimcheong’s Heart.
- Baby becomes Dokkaebi’s Speed.
- Abby becomes Mudang’s Wisdom.
It’s a clever way of showing that beneath the "manufactured" idol persona, there's a much older, darker power at play. It’s also a nod to how real K-pop fans often give idols "demon" or "god" nicknames when they have an especially intense stage presence.
The Real-Life Inspiration Behind the Saja Boys
Director Maggie Kang has been pretty open about how she pulled from the real K-pop world to make the Saja Boys feel authentic. They aren't just random cartoons; they're a love letter to the "dark concept" boy groups that have dominated the charts recently.
If you look at their debut performance of "Soda Pop" in the film, the choreography is sharp and aggressive, reminiscent of groups like ATEEZ and Stray Kids. The demonic visual elements—the glowing eyes, the ink-like patterns on the skin—were actually inspired by the "Blood, Sweat & Tears" era of BTS.
Fans have been obsessively comparing the characters to real idols since the movie dropped in June 2025. Is Jinu actually just animated Ahn Hyo-seop? Probably. Does Baby Saja move exactly like Jimin? 100%. This connection to real-life idols is exactly why the kpop demon hunters boys names have become such a huge search term; people want to know if their "bias" inspired a demon hunter.
What Most People Get Wrong
A common misconception is that the Saja Boys are the "villains" of the whole story. While they start out that way, the movie spends a lot of time on Jinu’s guilt. He’s essentially a slave to Gwi-Ma, trapped by the shame of his past.
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The Saja Boys aren't evil because they want to be; they're demons because they’re consumed by human regrets. By the end of the film, Jinu’s sacrifice to help Rumi (the lead of Huntrix) shows that the names and labels don't define them. They’re more than just "The Visual" or "The Maknae."
Actionable Insights for Fans
If you're looking to dive deeper into the world of KPop Demon Hunters or just want to use these names for your own fan content, here’s what you should do:
- Watch for the Easter Eggs: The movie is packed with cameos. Keep an eye out for TWICE posters and the "Strategy" chart ranking.
- Listen to the Soundtrack: The songs aren't just "cartoon music." They were written by actual K-pop producers like TEDDY and 24. "Your Idol" by the Saja Boys is a genuine bop.
- Follow the Voice Actors: If you love Jinu, watch Business Proposal or Dr. Romantic. If you like the vocals for Mystery, check out Kevin Woo’s solo work.
- Check out "The Uncanny Counter": If the "demon hunters in tracksuits" vibe is what you're after, this K-drama (starring Kim Se-jeong) is the live-action spiritual cousin to the movie.
The Saja Boys might have started as a parody of boy band tropes, but they’ve become a cultural phenomenon in their own right. Whether you’re Team Jinu or you’ve got a soft spot for the silent-but-deadly Baby Saja, these names are officially etched into K-pop (and animation) history.
Next steps for you: Go check out the official KPop Demon Hunters soundtrack on Spotify or Apple Music. Pay close attention to the lyrics of "Your Idol"—knowing Jinu's backstory makes the "selling your soul" lines hit a lot differently.